Urban Permaculture (or just eco-friendly gardening)

If you have a permaculture-ish home garden in a somewhat limited space, I'd love to learn from you! I'm interested in growing food at home, where I have a little but mighty backyard, while supporting biodiversity and minimizing labor, artificial watering, artificial fertilizer, and pesticides. That sounds like "permaculture" to me, but for experts I imagine the term has a more restricted meaning. Hence "permaculture-ish". ;)